Heel-scouring machine



Patented Aug'. 12, 1919.

2 SHEETS-SHEET l.

A. B. FOWLER.

HEEL SCURING NIACHN.

APPLICATION FILED mm2, 191s. 1,312,529.

A. B. FOWLER.

HEEL SCOURING MACHINE.

APPLICATION FILED 1AN.2.1918.

Patented A110. 12, 1919.

ZSHEET's-SHEET 2.

lll/lllllllllll//IIAIVII' ITED `S'lL.A\.TES PATENT OFFICE.

ALFRED B. FOWLER, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITEDSHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, .A CORPORATION 0F N EW JERSEY.

HEEL-SCOURING MACHINE.

Specification of Letters Patent.

Patented Aug.' 12, 1919.

Application led January 2, 1918. Seria1No.-'209,919.

of Massachusetts, have invented certain 11n- H provenients in -Heel-Scouring Machines, of which the following description,A in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines in which the operating tool is inclosed or partially inclosed by a hood and is herein illustrated as embodied in a machine for scouring the heels of boots and shoes.

The heels of boots and shoes, preparatory to being` blacked, waxed and burnished, are commonly scoured by having their sides presented to cylindrical heel scouring rolls and their breasts to conical heel scouring wheels or cones. Usually two rolls and two cones having covers respectively of coarse and fine sandpaper are used. All four tools are commonly mounted on a single shaft with the cones at the ends of the sha-ft. It is desirable that close fitting hoodsbe provided for these rolls in order that the dust generated by the scouring operations may be effectively re moved. At the same time it is necessary that the construction be such that ready access may be had to the tools when it is desired to remove and replace the abrasive covers. The heel breast scouring cones present no con siderable difficulty both by reason of the manner in which the covers are attached and by reason of the location of the cones at the ends `of the shaft. The cylindrical heel scouring rolls are commonly of the split type comprising sections hinged together at one side of the shaft the free ends beingffastened together at the other side of the shaft by some sort of catch. In order that the operator may readily unfasten the catch, spread open the sections, and remove and replace the worn cover, it is necessary that part or all of the hood be moved out of the way; but a hood so constructed that the entire structure can be moved out of the way does not fit the .scouring roll closely enough to have the desired efficiency.

One feature of the present inventioncomprises a novel sectional hood constructed andY arranged for movement of the sections toward and awa-y from the tool. It is thus possible to close the hoodjabout the vtool and maintain it in this closed position during the scouring operation `and then to open the hood to permit ready removal and replacement of the abrasivecover.

According to another feature of the invention the movable sections of the h ood are connected to a manually operated member `manipulation of which opens and closes the hood.

It is, of course, necessary to stop the rota-l tion of the tool whenever the cover of the tool is being removed and replaced; a further feature of 'the invention'v comprises means manipulation of which withdraws power from the tool and opensthehood; and conveniently opposite or furthermanipulation of the same means applies power tothe tool and closes the hood.

These and other features of.. the invention, including certain details of construction and combinations of parts, will be described as embodied in an illustrative machine and defined in the appended claims.

a Referring now to the accompanying drawings- Figure 1 is a front elevation of a machine in which the present invention is embodied, the sections of the hood being shown in their closed positions;

Fig. 2 is aside elevation of the machine;

Fig. 3 is a detail principally in section showing the construction of the diaphragm, the end wall 19 being shown in dotted lines in the position to `which it is moved by manipulation of the treadle just before it swings back intothe position shown in Fig. 4; and l Fig. 4.- is an end elevation of the upper partof the machine, one of the conical heel breast scouring wheels and it-s hood having been removed, certain parts having been broken away and sectioned, the hood being shown in its open position.

The illustrative machine comprises a pedestal 6 having bearings in the upper part for a shaft 8 on which are mounted two cylindrical Vheel scouring tools and two conical Vheel breast scouring tools. The conical heel breast scouring tools with their hbodsy and mountings form no part of the present in vention and will not be further described. It will be noted, however', that by Vreason of the presence of the heel breast scouring cones, the space at the outer ends of the heel scouring tools is limited and that on this account special means are required for providing access to the heel scouring tools.

Referring more particularly to Figs. 3 and 4, the tool 5 is herein shown as a heel scouring wheel or roll having a removable abrasive cover 7. The dust hood which partially incloses this tool comprises a stationary rear wall 9 and end wall 11, herein shown as integral, a cover 13 pivoted to the rear wall a diaphragm 15 fast to a rod 17 which is slidable through the rear wall toward and away from the tool 5, a movable end wall 19 carried by an arm 21 which is pivotally mounted on a rod 23, and a movable front wall or piece 25 pivoted about a fixed stud 27. The rear wall 9 extends forward a short distance and abuts at 2O against the segmental rear edge of the end wall 19 when the hood is closed. This hood, which is connected through the hollow pedestal of the machine with a suction fan 29, is normally closed as shown in Figs. 2 and 3, the. cover 13 being down, the diaphragm 15 close to the rear of the scouring tool, the end wall 19 close to one end of the tool, and the front piece 25, which is U-shaped in cross-section, raised until its forward edge is close to the periphery of the tool and its wings 125 embrace the end walls 11 and 19. Vith the hood thus closed, a strong, concentrated draft is applied all around the tool to carry away the dust generated by the scouring or abrading operation. At intervals it becomes necessary to remove and replace the abrasive cover 7; and at such times ready access must be had to the tool. The parts of the hood are then moved to the positions shown in Fig. 4 by mechanism which will presently be described. The diaphragm 15 has the saine function as the one shown in my prior application Serial No. 192,502, filed Sept. 21, 1917; and the broad claims to this feature will be found in that application.

Turning now to the mechanism for operating the movable parts of the hood, the hub at the lower end of the arm 21, by which the end wall 19 is carried, is pivoted on the end of the rod 23 but held from longitudinal movement with respect to said rod. Consequently when the rod is moved to the right as viewed in Fig. 1, the end wall 19 will also bc moved to the right, and being then unsupported except by the rod 23 will .l swing backwardly under the force of gravity until arrested by the chain 31 as shown in Fig. 4. Movement of the rod 23 to the right is accomplished by depressing the left hand end, as viewed in Fig. 1, of a treadle 33 `fast to the end ofa rock-shaft 35, said rock-shaft having fast thereon a collar 37.

An arm 39 integral with the collar is pivotally connected at 41 with the lower end of an upright rod 43 to the upper end of which is pivoted the long arm 45 of a double bellcrank lever, the short arms of which are indicated at 47 and 147. The double bellcrank lever is pivoted at 51 to a fixed stud; and a link 53 is pivoted at one end to the short arm 47 and at the other to the rod 23. When, therefore, a downward pull is exerted upon the rod 43, the arm 47 is swung in a counter-clockwise direction, as viewed in Fig. 1, and the rod 23 moved to the right in its bearing 55. This moves the segmental end wall 19 to the dotted line position indicated in Fig. 3 whereupon, by its weight, it Swings to the position which it occupies in Fie'. 4.

'he front-piece 25 and the diaphragm 15 are also moved away from the scouring tool by the downward movement of the rod 43. To this end an upward extension 55 on the rod 43 passes up between the arms of a fork at one end of a lever 57, said lever being pivoted to the frame of the machine at 59 and being connected at its left-hand end by a pin and slot with an extension formed on the front piece or wall 25. The rod or extension 55 has two sets of nuts 61, 63; and between the nuts 63 and the forked end of the lever 57, a coiled spring 65 is located. Fast to or integral with the lever 57 is a curved arm 67, the upper end of which is connected by a pin and slot with the rod 17 by which the diaphragm 15 is carried. It will now be evident that, starting with the parts of the hood in the positions illustrated in Figs. 1, 2 and 3 depression of the treadle to pull down the rod 43 will cause the front-piece 25 the end wall 19 and the diaphraghm 15 to assume the positions` shown in Fig. 4. The operator now has ready access to the scouring wheel 5 to remove and replace the abrasive cover 7, after which the operator pulls the end wall 19 forwardly and moves the rod 43 upwardly, in a manner presently to be described, to move the parts 19, 15 and 25 of the hood back into the positions which they occupy in Figs. 1, 2 and 3. The cover 13 is raised and lowered by hand.

Thus far only the right-hand heel scouring tool, its sectional hood and the mechanism for moving the sections havebeen described. The corresponding elements of the left-hand heel scouring tool are similar. No detailed description of them will, therefore, be given, but reference numerals increased by 100 have been applied tothem so that they may readily be identified.

Vhen the covers of the rolls or tools are being removed and replaced the shaft 8 must, of course, be at rest. The present machine is so constructed that manipulation of the treadle 33 to open the hoods disconnects the shaft 8 from its source of power. The

shaft 8 is driven by a belt 69 which passes around a small pulley on said shaft and around a large pulley 71 on a'counter-shaft 73. Loose on one end of the counter-shaft is a driving pulley 75 having a conical clutch face in one end thereof to receive a correspondingly shaped clutch member 77, said member being splined t0 the countershaft and urged into operative position by a coiled spring 79. A bell-crank lever 81, pivoted to the frame at 83, has at one end the usual yoke to engage a groove on the clutch member 77 and at the other end is connected by a `link 85 with an arm carried by a collar 87 which is fast to the rock-shaft 35. Thus,`when the shaft 35 'is rocked to pull down on the rod 43 and open the hoods, the bell-crank lever 81 pulls the clutch member 77 away from the driving pulley 75, thus withdrawing power from the shaft 8 and allowing that shaft to come to rest.

The treadle 33, which is fast to the rock- -shaft 35, has an upstanding lug 89 which engages one side or the other 0f a pin 91 t0 hold the treadle in either of the eXtreme angular positions to which it `maybe moved. The'pin 91, which is carried by a collar 93 loose on Jthe rock-shaft and is normally held in the operative position shown by a coiled spring 95, must bey moved to the right as viewed in Fig. 2 before the angular position of the treadle 33 can be changed. T0 this end the stems of a pair of toe-pieces 97, 99 pass through curved slots 100, 102 in the frame of the machine and are fastened to a collar 104 which is loose on the rock-shaft and contacts with the collar 93. The toepieces thus move in unison. vWith the parts in the positions shown inthe drawings, `if it is desired to stop the machine and change the covers of the rolls, the operator pushes in on the toe-piece 97, thereby moving the end of the pin 91 out of the path of the lug 89, and then, having pushed down on the adjacent end of the treadle, releases the toepiece. The pin 91, thereupon, engages the other side of the lug 89 (the right-hand side as viewed in Fig. 1), and holds the clutchY in thrown-out position and the hoods open. To start the machine and close the hoods, the Swinging end walls 19, 119 of the hoods are first pulled forward, and then the treadle 33 is manipulated as before eXcept that the toe-piece 99 is used and the manipulation is in the opposite direction.

The rotary member of the blower 29 is loose on the shaft 73 and hasfast to it a pulley 106 driven by a belt 108 which passes around said pulley, around a double belt tightening pulley 11() and around a pulley 112 fast to the shaft 73. The righthand bearing of the shaft 73, as viewed in Fig. 1, is supported in the casing ofl the blower and the intake pipe 114 is fastened over an opening in the lower part of the pedestal of the machine by bolts 116. 1Vith this construction, if the machine is to be used in a factory which is fitted with a blower system, the blower 29 with its inlet pipe 114 may be removed and replaced by a standard having a bearing for the shaft 73. An inlet pipe of the blower system of the factory may then be fastened to the pedestal by the bolts 116.

Although the invention has been set forth as embodied in a particular machine,- it should be understood that the invention is not limited in the scope of its application to the particular machine which has been shown and described.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A machine of the class described having, in combination, an abrading tool, a hood partly inclosing the tool, said hood comprising a section movable to one side of the remainder of the hood so as to expose the end of the tool and permit ready access thereto, a treadle, and connections between the treadle and the movable section such that manipulation of the treadle moves the section away from the tool.

2. A machine of the class described having, in combination, an abrading tool, a vhood partly inclosing the tool, said hood comprising a plurality of sections movable away from the tool to permit read7 access thereto, a treadle, and connections etween the treadle and the sections such that manipulation of the treadle moves the sections away from the tool.

3. A machine of the class described having, in combination, an abrading tool, a hood partly inciosing the tool, said hood comprising a plurality of sections movable away from the tool to permit ready access thereto, and a single means manipulation of which effects such movement.

4. A machine of the class described, having in combination, an operating tool, a hood partly inclosing the tool, said hood comprising a plurality of sections, and a single member arranged to act upon plural sections to move them away from the' tool.

5. A machine of the class described, having in combination, an operating vtool, a hood partly inclosing the tool, said hood comprising a plurality of sections, a single member, and connections between the member and the sections such that manipulation of theinembel1 moves the sections away from the tool.

6. A machine of the class described having, in combination, an abrading tool and a hood partly inclosing the tool, said hood comprising a stationary end and rear wall, a movable end wall, a treadle, and means for connecting the treadle with the movable end wall.

7. A machine of the class described having, in combination, an abrading tool having a removable cover therefor, a hood partly inclosing the tool, said hood comprising a plurality of sections movable respectively away from the periphery and away from the end of the tool to permit removal and replacement of the cover, and a single means manipulation of which eiliects such movement.

8. A machine of the class described having, in combination, an abrading tool and a hood partly inclosing the tool, said hood comprising afront wall, an end wall and a diaphragm, and means for moving said walls and diaphragm away from the tool.

9. A machine of the class described having, in combination, an abrading tool and a hood partly inclosing the tool, said hood comprisng a front wall, an end wall and a diaphragm, means for moving said walls and diaphragm away from the tool, and a single means manipulation of which moves said walls and diaphragm away from the tool.

10. A machine of the class described having, in combination, an abrading tool,'a hood partially inclosing the tool, said hood being normally closed about the tool but being capable of being opened to permit access to said tool and treadle controlled means for opening said hood.

11. A machine of the class described having, in combination, an abrading tool, a hood partly inclosing the tool, said hood being normally closed about the tool but being capable of being opened to permit access to the tool, means forI applying power to the tool, and means to control simultaneously the application of power and opening or closing the hood.

12. A machine of the class described having, in combination, an abrading tool, a hood partly inclosing the tool, said hood being normally closed about the tool but being capable of being opened to permit access to the tool, means for applying power to the tool, and a' single member manipulation of which withdraws power from the tool and opens the hood.

13. A machine of the class described, having, in combination, an abrading tool, a hood partly inclosing the tool, said hood being normally closed about the tool but being capable of being opened to permit access to the tool, means for applying power to the tool, and a single member manipulation of which in one direction withdraws power from the tool and opens the hood, and in another direction applies power to the member and closes the hood.

14. A machine of the class described, having in combination, an operating tool, a hood partly inclosing the tool, said hood being normally closed about the tool but being capable of being opened to permit access to the tool, a clutch through which power is applied to the tool, and a member manipulation of which throws out the clutch and opens the hood.

In testimony whereof I have signed my name to this specification.

ALFRED B. FOWLER.

Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, ID. C. 

